FOCSTOL Combination Drill Tap Bit Set - 13pcs SAE (6-32NC to 1/4-20NC) and Metric (M3 to M10) with Quick Change Hex Shank for Drilling Tapping and countersinking Iron Aluminium Copper Metal - F2-O22402L01

• Package Include-----Total 13pcs/set: 6pcs SAE (6-32NC to 1/4-20NC). 6pcs Metric (M3 to M10). 1pc extension pole. quick change hex shank. shank diameter 6.35mm Application-----Suitable for drilling, tapping and countersinking holes (3 in 1) in stainless steel (1MM thickness and below), iron (3MM thickness and below), aluminum, copper, metal, plastics, etc. Drilling, tapping and countersinking in one step, saving processing steps and processing time High Convenience-----The product portfolio includes SAE and metric sizes, with comprehensive specifications and a variety of sizes to meet customers' machining needs for a wide range of materials and different diameters. Meanwhile, with the extension bar, can be used in the processing of obstacles, or need to process the hole deeper conditions High Performance-----High-speed steel material is coated with titanium nitride (TIN) for high hardness and sharpness, which prolongs the service life. Drill body with spiral flutes for fast chip removal and heat dissipation to improve drilling efficiency Recommended Machine-----Suitable for most power tools, such as Electric drill, Bench drill, Drill press and Tapping machine. (Use electric hand drill: Recommended speed not less than 2000RPM)